Shutter-fastener



UNITED STATES To all whom it may concern:

Be it known that I, JOSEPH W. PEARSON, a citizen of the United States, residing at Newton, in thecounty of Middlesex and State of Massachusetts, have invented an Improvement in Blind-Fasteners, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification, in

Figure 1 is a side elevation of my improved blind-fastener applied to a blind. Fig. 2 is an end elevation of the same. Fig. 3 is a longitudinal vertical section on the line a: of Fig. 2. Fig. 4 is a transverse vertical section on the line 3 y of Fig. 1. Fig. 5 is a perspective view of the joint socket-plate detached. Fig. 6 is a sectional detail.- 1

My invention relates to an improvement on the blind-fastener for which Letters Patent of the United States, No. 65,993, were granted to Albert Binghani on the th day of June, A. D. 186?,in which one end of the catch-lever was pivoted to the under side of the bottom bar of the blind by means of a single screw, which passed up through it and served as a fulcrum or pivot therefor. This construction was, however, objectionable, as the screw was liable to get loose, and its head was frequently broken off on account of its becoming rusted from exposure to the weather and the strain to which .it was sometimes subjected, while the exposed portion of the screw became coated with ice and snow in cold weather, rendering the catchlever inoperative.

My invention has for its object to overcome these difficulties; and it consists in the combination, with the catch-lever, of a socket or fulcrum plate secured to the blind bya single screw, and provided with one or more pins or projections adapted to pass through a corresponding aperture or apertures in the end of the catch-lever, and indent or enter into the wood to prevent the socket-plate from turning or moving laterally when secured in place by the screw, a strong, durable,'and simple pivot ing devicebeingthus provided, which relieves the fastening-screwot all strain and excludes the snow. and ice from the fulcrum of the catchlever, thus diminishing the liability of rust and PATENT OFFICE.

JOSEPH \V. PEARSON, OF NEWTON, MASSACHUSETTS.

SHUTTER- FASTENER.

SPECIFICATION forming part of Letters Patent No. 240,760, dated April 26, 1881.

Application filed February 25, 1881. (Model) breakage, and preventing the joint from being rendered inoperative by snow and ice.

In the said drawings, A represents a windowsill, and B the blind hinged thereto, as usual, at b.

O is the catch-lever of the fastening, the front end, d, of which passes through and is supported by a staple, e, driven up into the bottom bar of the blind. The front end of the lever U is provided with a transverse portion, f, beveled on each side, as seen in Fig. 2, and having two notches, 7 S, the formerbeing adapted to catch over the staple g, driven into the window-sill, and the latter to engage with a suitable catch driven into the outer wallof the building.

The bar G is raised to disengage either of the notches by means of a lever, h, on the side of the blind, the construction of the fastening thus far being substantially the same as that described in the aforesaid Letters Patentof Albert Bingham, No. 65,993.

I will now describe the manner in which the inner end of the catch-lever G is pivoted to the under side of the bottom bar of the blind, which forms the subject of my present invention.

D is a castinetal socket or fulcrum plate, of the form seen in Fig. 5, being composed of an upper portion, '5, and a lower portion, 70, united by an offset, 1, forming a shoulder, 10, the socketplatebein g secured firmly in place on the under side of the'bottom bar of the blind by a single screw, m, passing through the portion From the upper surface of the portion project two pins, n a, cast in the same piece therewith, these pins or projections passing up through apertures 12 p in the enlarged end q of the catch-lever 0, serving as a point or fulcrum therefor. and being of such length as to indent or enter the wood forming the bottom bar of the blind, as seen in Fig. 4, and thus prevent the socket-plate from turning or moving laterally when secured by the screw m.

It will be seen that by the employment ofthe above-described socket-plate D the fastening-screw m is relieved of all strain, and the lever G rendered much more steady and less liable to get out of order, while the pivot or fulcrum is protected from snow and. ice, and

consequently the liability of rust or breakage is greatly diminished and the fastening prevented from being rendered inoperative.

If desired, the socket-plate may be provided With a single pin or projection, 12, instead of two, as shown; but I prefer to employ two, as greater steadiness of the lever G is thereby secured.

It is evident that my improved socket-plate may be employed, if desired, for pivoting gatelatches, 850., without departing from the spirit of my invention.

What I claim as my invention, and desire to secure by Letters Patent, is-

In a blind-fastener, the socket or fulcrum plate D, provided with a shoulder, 10, and one or more pins or projections, n, adapted to indent or enter the wood and prevent the plate from turning or moving laterally when secured by the screw m, in combination with the catchlever (J, having an aperture or apertures at its inner end, through which the pin or pins n pass to form a joint or fulcrum for the lever, substantially as and for the purpose set forth,

Witness my hand this 18th day of February, A D. 1881.

JOSEPH w. PEARSON. 4

In presence of- P. E. TESCHEMAOHER, W. J. CAMBRIDGE. 

